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TI-2012-05466 Aliases CVE-2012-10043GHSA-hjc5-mwx5-gc6h

ActFax 4.32 Client Importer Buffer Overflow

Priority HIGH 75CWE-121Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.

Summary

A stack-based buffer overflow vulnerability exists in ActFax Server version 4.32, specifically in the "Import Users from File" functionality of the client interface. The application fails to properly validate the length of tab-delimited fields in .exp files, leading to unsafe usage of strcpy() during CSV parsing. An attacker can exploit this vulnerability by crafting a malicious .exp file and importing it using the default character set "ECMA-94 / Latin 1 (ISO 8859)". Successful exploitation may result in arbitrary code execution, leading to full system compromise. User interaction is required to trigger the vulnerability.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00447 39th percentileScored 2026-11-07
Public exploit Yes 3 exploit referencesTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ActfaxServer4.32—No fix listedCNA
  • Server VendorActfax Affected 4.32 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2012-10043
  2. 2026-10-03 Alias added: GHSA-hjc5-mwx5-gc6h

References

Exploit 3

Other 1

  • TI-2023-30237 ActFax 10.10 Unquoted Path Services Privilege Escalation Vulnerability CVSS 4.0HIGH 8.5
  • TI-2019-15364 ActiveFax Server 6.92 Build 0316 - 'ActiveFaxServiceNT' Unquoted Service Path CVSS 4.0HIGH 8.5
  • TI-2020-12471 ActFax Version 7.10 Build 0335 (2020-05-25) is susceptible to a privilege escalation… CVSS 3.1HIGH 7.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences